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jokersoul1116
2 năm trước
Cho tam giâm ABC vuông tại A, đường cao AH. Biết BC=25cm,AC=20 cm. a) Tính AB, AH, HB, HC b) Tính B,C ( làm tròn đến độ) c) Vẽ phân giác AD (D thuộc BC). Tính diện tích tam giác ADB
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